Hydrometeorological Discussion
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AGUS71 KTIR 261625
HMDTIR
Ohio River Basin Hydrometeorological Discussion
Ohio River Forecast Center, Wilmington, Ohio
1225 PM EDT Monday, June 26, 2017

...HYDROMETEOROLOGICAL DISCUSSION...
Low pressure moving through the Great Lakes will continue to spark
isolated showers and thunderstorms in the northern basin today lasting
into early Tuesday. An upper trough digging into the Ohio Valley tonight
will generate some scattered showers and thunderstorms into Tuesday as well,
although the bulk of this activity will remain south of the Ohio River. High
pressure builds in for midweek with generally quiet weather.

Deeper moisture returns to the basin beginning Thursday, and with it an
arriving cold front to provide the focus for showers and thunderstorms.
Initially the storms will affect the northern half of the basin, but
activity will gradually sag southward into the weekend.

...FLOOD POTENTIAL DISCUSSION...
Minor flooding continues across parts of Indiana. Elsewhere, rivers are
mostly in recession following last week`s tropical rain event.  With
a relatively dry airmass in place through midweek, the threat of additional
flooding will be low.  The potential will increase late week as Gulf
moisture returns to the region.

...24-HR OBSERVED PRECIPITATION USED IN TODAY`S RIVER FORECASTS...
Isolated showers across the northern/eastern Ohio Valley produced mostly
around 0.10" or less. Some embedded thunderstorms to the lee of Lake Erie
produced amounts in the 0.50" to 1" range.

...48-HR FORECAST PRECIPITATION USED IN TODAY`S RIVER FORECASTS...
Isolated showers and storms in the northern basin could produce up to a half
inch in spots, especially to the lee of Lake Erie again. Elsewhere amounts
will be much lighter. In addition, showers/storms developing along
and south of the Ohio River tonight and Tuesday will produce around a third
of an inch or less, on average.

...RIVER BASINS IN FLOOD...
Points along the following river basins were in flood Monday morning:
 River Basin     Forecast Point   Flood Stage Latest Stg Tendency *
White River      Nora                  11         11.0    Falling
Wabash River     Montezuma             14         14.3    Falling

Forecast precipitation graphics are available on the OHRFC Website
at the following address:  http://weather.gov/ohrfc/ForecastPrecipitation

* Tendency based on observed value and a 1-day forecast.
$$
jm




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